Introducing the Strike Modular Chassis Alpha MKII for Sig Sauer P320. This is the second iteration of the SMC Alpha series which has been a long time coming and we are excited to finally offer this product to our customers. The Alpha MKII is made of a full aluminum construction, is built for hard use, and represents the best of modularity that Strike has to offer. If you're not already familiar with our line of SMC products Strike's motto is to be innovative and to provide the best quality parts at the best prices. In the spirit of this, the MKII will include the new Alpha frame, a rear back strap w/ picatinny rail, THE BACKSTRAP LITE, Strike Modular Magazine Release for p320, optic mount, Spare P320 Magazine Holder, Extended Ambi P320 Charging Handle, and all the needed hardware for mounting optics (screws and posts). Optional accessories that can be separately purchased include the Alpha Magwell, Alpha Comps (Short and Long), SMC Blast Shield (Hyper and Standard), EMP's (Polymer and Aluminum), and our FSA Single Stock/Stabilizer or FSA Dual Stock/Stabilizer Like the original SMC Alpha (Standard), this model is also of "standard" or "full" length. That means this frame's dust cover will sit flush with a 4.7" barrel and slide for a P320. Technically, any Sig P320 barrel and slide will fit with the Alpha MKII frame. If you're running a barrel or slide combination that is 3.9" or shorter you will have to use one of our ALPHA COMPS (Short or Long) in order to achieve flush fitment. If running a Blast Shield, your choice in size will also affect fitment. Please be aware that the Standard Blast Shield can only fit one accessory at a time, whereas the Hyper Blast Shield can fit two. Specifications for Strike Industries Alpha MKII for SIG SAUER P320: Manufacturer: Strike Industries Gun Make: SIG Sauer Gun Model: SIG Sauer P320 Color: Black Fabric/Material: Aluminum Features of Strike Industries Alpha MKII for SIG SAUER P320 Full aluminum construction, modular chassis system INCLUDES Pic Rail Backstrap and Lite Backstrap INCLUDES Spare Magazine Holder INCLUDES Optic Mount Multi Optic Pattern fits most red dot sights on the market (hardware included) INCLUDES Ambi Charging Handle (Extended) INCLUDES Modular Extended Mag Release Button on both frame and mag holder Compatible with additional optional SMC accessories Package Contents: Strike Industries Alpha MKII for SIG SAUER P320 1x SMC ALPHA GRIP MODULE/CHASSIS with Grip Panel SI Modular Magazine Release w/ extended button and Rear Module Backstrap w/ QD sockets (fully assembled) 1x Slide Cover Mount for Ambidextrous Side Charging Handle 1x Ambidextrous Side Charging handle for Slide Cover Mount 1x Screw for Ambidextrous Side Charging handle to Slide Cover Mount M4x8mm T20 Rounded 2x Rubber pad for Ambidextrous Side Charging Handle bar back side facing slide 1x Spare Magazine Holder with SI Modular Magazine Release w/ extended button (fully assembled) 1x Screw for Spare Magazine Holder M5x30mm T27 Socket Head 1x Nut for Spare Magazine Holder M5 Hex 1x MultiOptic Mount 4x Screw for MultiOptic Mount M4x7mm T25 Socket Head 3x Screw M3x8mm T10 Flat 3x Screw M3x9mm T10 Flat 3x Screw M3x10mm T10 Flat 3x Screw M3x14mm T10 Flat 3x Screw M3x15mm T10 Flat 3x Screw M3x7mm T10 Rounded 3x Screw M3x8mm T10 Rounded 3x Screw M3x10mm T10 Rounded 3x Screw M3x11mm T10 Rounded 5x Large mounting post 5x Small mounting post 5x Shallow mounting post 3x Tall mounting post 1x Torx tool T10 1x Torx tool T20 1x Torx tool T25 1x Torx tool T27 1x Loctite Threadlocker Blue 243 1x Lite Backstrap